Engine



March 16, 193 7.

V. W. KLIESRATH ENGINE Filed Alig. 25, 1933 INVENTOR. VICTOR \M KUE5RATH BY w? ATTORNEY Patented Mar. 16, 1937 PATENT OFFICE;

ENGINE Victor W. Kliesrath, South Bend, Ind; assignor to lhe Steel Wheel Corporation, Chicago, 111., a corporation of 'New York Application August 25, 1933, Serial No. 686,721

7 Claims.

This invention relates to engines, andis illustrated as embodied in an internal combustion engine for an automobile. An object of the invention is to provide a complete housing for the various engine accessories, and to provide simple and inexpensive means for cleaning the air to be used in the engine.

In one desirable arrangement, the spark plugs, distributor, water-jacket connections, and the like accessories on the upper face of the cylinder head, are housed in the hollow interior of a novel cover mounted on and over the cylinder head. This cover has in its upper portion air-cleaning means, such as a filter medium held by a perforated plate or the like, and is provided with air openings (shown as series of louvered slots along its sides) through which the air passes into the interior of the cover.

The air so cleaned then passes, through a conduit or the like, to the carbureter and thence (with the fuel charge) to the intake manifold. The illustrated air conduit has two branches communicating with the interior of the cover at its ends, and a common portion in which the two air streams cross each other and thence pass through two passages to the two air intakes of a double carburetor. The double carbureter has its parts connected respectively to the two passages of a double intake manifold for the engine, this being for the purpose of giving a higher velocity to the fuel mixture at low andidling speeds.

The engine preferably also has its engine'- driven accessories (such as the generator, water pump, and starting motor) enclosed. To this end the engine crankcase projects along the side of the engine to support a similarly-projecting part of the cylinder block forming a shelf supporting these accessories, which are then housed in a generally L-section housing engaging the side of the cylinder block and also engaging the cylinder block adjacent the edge of the above-described shelf. I

The above and other objects and features of the invention, including various novel combinations of parts and desirable particular constructions, will be apparent from the following description of the illustrative embodiment shown in the accompanying drawing, in which:

Figure 1 is a side elevation of the engine, partly broken away to show the double manifold in vertical longitudinal section;

Figure 2 is an end elevation of the engine, with the two covers and the intake manifold shown in section on the line 22 of Figure 1;

Figure 3 is a partial section through the intake manifold, on the line 3-3 of Figure l; and

Figure 4 is a view with parts in section looking from the back of the air conduit.

The illustrated engine comprises a crankcase 5 l0 having a clutch housing l2 at one end, an engine cylinder block l4 mounted thereon, and a detachable cylinder head l6 bolted or otherwise secured in the usual manner on the top of the cylinder block.

The usual spark plugs ll, distributor I8, waterjacket connections 20, and the like accessories, are mounted on the upper face of the cylinder head 16. What are usually spoken of as enginedriven accessories, such as the generator 24 and the water pump 26 and the starting motor 28, are grouped in line along a shelf formed by a projecting lower portion of the cylinder block l4 resting on the crankcase l0 and projecting beyond the upper portion of the cylinder block 14 along the side of the engine. The pump 26 and the generator 24 are shown on the same drive shaft 30 driven by the usual timing gear or belt or the like 32 housed by a suitable cover (not shown).

The particular engine illustrated is intended for steam cooling. As more fully explained in my application No. 739,622 filed August 13, 1934, the pump 26 receives water from the bottom of the engine water jacket and circulates it to the top of the radiator (not shown), whence it circulates from the bottom of the radiator to the top of the water jacket.

The engine-driven accessories 24-46-28 are housed Within, an L-section stamped steel hous- 35 ing 36, the upper horizontal portion of which seats under a horizontal ledge 38 formed in the side of the cylinder block I4 and running lengthwise of the engine. The vertical portion of the housing is secured by suitable fastenings, such as machine bolts 40, to the projecting side of the cylinder block just above the crankcase.

According to an important feature of the invention, the accessories l1--I8--2ll on the cylinder head are housed within the hollow interior along the sides of the cover, passes through the air-cleaning medium 44, and into the hollow interior of the cover.

The cleaned air passes to the carbureter from the interior of the cover 42, by means such as a 5 conduit 50 having two branches 5| communicating with the interior of the cover at its opposite ends, or at least at opposite sides of the transverse center plane of the cover. The two branches 5| of this conduit cross each other, so that the two air streams cross, and then continue as separate passages shown as communieating with the two parts of a double carbureter 52.

If such a carbureter is to be used, it may be of any desired standard form, having two fuel jets controlled by two throttle valves having.

arms 54 operated successively by the usual connections 56. The two parts of the carbureter communicate respectively with two separate sets of passages 58 and 68 leading to the intake valves of the engine. The two passages are combined immediately adjacent the intake valves, as will appear from Figure 2.

With the above-described arrangement, the entire volume of fuel and air passes to the engine through passage 60 at low and idling engine speeds, so that there is a substantial velocity of the gases even though their volume is small. At higher engine speeds both passages 58 and 60 are utilized, so that in spite of the increase in the volume of gases there is not an undue increase in their velocity. If preferred, of course, an ordinary manifold and carbureter may be used.

While one illustrative embodiment has been '35 described in detail, it is not my intention to limit the scope of the invention to that particular embodiment, or otherwise than by the terms of the appended claims.

I claim:

40 1. An engine having a cylinder head and an intake manifold and a carbureter connected to said manifold, and provided with accessories mounted on the cylinder head, and which has a hollow cover mounted over the cylinder head and housing said accessories and which has a perforated horizontal partition dividing it into an upper portion and a lower portion, air-cleaning means within its upper portion and air passages from the outside of the cover through said means and said partition to the interior of the cover, and an air conduit leading from the interior of said cover to said carbureter.

2. An engine having a cylinder head and a double intake manifold and a double carbureter having its parts connected to the two passages of said manifold, and provided with accessories mounted on, the cylinder head, and which has a hollow cover mounted over the cylinder head and housing said accessories and which has a perforated horizontal partition dividing it into an upper portion and a lower portion, air-cleaning means within its upper portion and air passages from the outside of the cover through said means and said partition to the interior of the cover,

and air conduits leading from spaced points in the interior of said cover to the parts of said carbureter.

3. An engine havinga cylinder head and a double intake manifold and a double carbureter having its parts connected to the two passages of said manifold, and provided with accessories mounted on the cylinder head, and which has a hollow cover mounted over the cylinder head and housing said accessories and which has air-cleaning means in its upper portion and air passages from the outside of the cover through said means to the interior of the cover, and air conduits leading from the interior of said cover adjacent the opposite ends of said cover and leading respectively to the parts of said carbureter, said conduits having one portion in common in which the air streams cross.

4. A cover constructed and arranged to be mounted on the cylinder head of an engine and having a hollow interior adapted to house accessories on said cylinder head, said cover having an air-cleaning medium within its upper portion, and means comprising a perforated partition arranged generally parallel to the surface of the cylinder head for retaining it therein and having openings from its exterior into said medium, and air connections leading from the interior of the lower portion of said cover to conduct air therefrom.

5. A cover constructed and arranged to be mounted on the cylinder head of an engine and having a hollow interior adapted to house accessories on said cylinder head, said cover having a perforated horizontal partition dividing it into an upper portion and a lower portion, and aircleaning means in its upper portion, and having openings from its exterior into said means, and air connections leading from the interior of the lower portion of said cover to conduct air therefrom.

6. A cover constructed and arranged to be mounted on the cylinder head of an engine and having a hollow interior adapted to house accessories on said cylinder head, said cover having air-cleaning means within its upper portion, and having openings from its exterior into said means, and an air conduit having branches communicating with the interior of the end portions of said cover and having a central portion and conducting air from said cover.

'7. A cover constructed and arranged to be mounted on the cylinder head of an engine having a carbureter, said cover having a hollow interior adapted to house accessories on said cylinder head, and having an'air-cleaning medium within its upper portion and a perforated partition arranged generally parallel with the surface of the head for retaining it therein and having along its sides series of openings from its exterior into said medium, and air connections leading from the interior of said cover below said partition and adapted to be connected to a carbureter.

VICTOR W. KLIESRATI-I. 

